Tape-applying machine



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TAPE-APPLYING MACHINE Filed Feb. 3, 1939 3 Sheets-Sheet l 9 w.'P. osoon 2,211,834 v TAPE-APPLYING MACHINE Filed Feb. 3, 1939 3 Sheets-Sheet 2 I ZNVENTUR mum. Q A 10mm.

M ATTQRA/Eg Au 20, 1940. w. P. QSGQQD 2,211,834

TAPE-APPLYING MACHINE Filed Feb. 3, 1939 3 Sheets-Sheet 3 l6 Z/VVENTUE' 4 W iii/Mb.

Patented Aug. 20, 1940 TAPE-APPLYKNG MACHINE Walter P. Osgood, Malden, lvl'ass.

Application February 3, 1939, Serial No. 254,516

16 Claims.

The present invention relates to tape-applying machines which'are used in the manufacture of shoes to apply tape to various portions of shoe uppers, and more particularly to combined seampressing and tape-applying machines which, in

addition to applying tape to the seam-ridge and I the faces of the quarters adjacent thereto,perform the seam-pressing operation upon the seam-ridge.

The principal object of the present invention is to simplify andimprove the construction and mode of operation of tape-applying machines generally and combined seam-pressing and tapeapplying machines particularly.

To the accomplishment of this object, and such others as may appear hereinafter, the various features of the present invention reside in certain devices, constructions and arrangement of parts hereinafter described and then pointed out broadly and in detail in the appended claims, possessingadvantages readily apparent to those skilled in the art.

The various features of the present invention will be readily understood from an inspection of the accompanying drawings illustrating the best form of the invention at present known to the inventor, in which,

Figure 1 is a view in left-side elevation of the machine; I Fig. 2 is a detail view in left-side elevation with certain of the parts illustrated in Fig. 1 shown in a different operating position therefrom;

Fig. 3 is a detail View in right-side elevation showing the normal operating positions of the tape-severing knife and the tape-guides together with their operative connections from the treadle-operated rock-shaft.

Fig. 4 is a detail view similar to Fig. 3, the

positions of the knife and the guides being shown at the time the tape is severed;

Fig. 5 is a detail view in left-side elevation of the combination hammer;

Fig. 6 is a detail View similar to that of Fig. 5, the parts of the combination hammer being shown in different positions;

Fig. Tis a detail view in front elevation of the machine;

Fig. 8 is a detail view in Sectional elevation on the line 8-8, Fig. 1;

Fig. 9 is a detail view similar to that of Fig. 8' showing the relationship of the parts thereof to the work, and

Fig. 10 is a detail view in sectional on the line ill-l0, Fig. 1.

For convenience, the various features of the elevation present invention are illustrated as embodied in a combined seam-pressing and taping machine of the type disclosed in my patent numbered 1,646,212 and dated October 18, 1927. Accordingly, the work to which the tape is to be applied '5 H is illustrated as the seam-ridge I I, (Fig. 9), formed by joining a pair of shoe quarters l2 and E55 by a back'seam l l. Those skilled in the art, however, will understand that, properly, certain features of the invention could have been illus-' trated as embodied either in atop taping machine cf the type disclosed in my patent numbered 1,549,376 and dated August 11, 1925 or in a a seam-pressing machine of the type disclosed in my patent numbered 1,928,654 and dated 00- '15 tober 3, 1933.

The shoe quarters l2 and I3, (Fig. 9), are supported for. the tape-applying operation by a roll 55, (Fig. '7) provided with a flat peripheral edge face it. The edge face It comprises the exposed 20 face of a thin metal ring I1, (Fig. 10) the inside face of which engages the peripheral edge face of a thick rubber ring 53 carried by a solid metal roll I9 rotatably mounted and spring-supported in a well-known manner. The opposite edges of the ring i! are downturned to form flanges zowhich embrace the opposite side faces o'f'the rubber ring l8 adjacent the periphery thereof. With this construction, the rubber ring l8 may yield vertically and laterally.

.In many instances, the quarters l2 and I3 are not uniform in'thickness, as illustrated in Fig. 10. By mounting the metal ring I? on the rubber ring 18, the ring I! may move vertically downward and shift laterally to locate itself in '35 a the proper position for the support of the quarters l2 and l t having differential thicknesses during the tape-applying or seam-pressing operations. v

The seam-ridge H is guided'by a guide 2], (Figs. 1 and 2), having three arms, (Fig. 1), 22, 23 and 24, (Fig. 9). The bottom faces of the arms 22 and 23 have an extended bearing surface on the faces of the quarters l2 and i3,

respectively, adjacent the opposite bases of the. seam-ridge. The inside faces of the arms 22' and 23 have extended bearingsurfaces which, embrace the opposite exposed faces of the seam ridge. The arms 22 and 23 are secured at their front ends to a block 25, in order that through their resiliency the free ends of the arms may expand or contract laterally to compensate for varying thicknesses of seam-ridges passed therebetween. I The arm 24 has a flat extended hearing surface upon the exposed end edge face of I the seam-ridge. The arm 24, for a'considerable portion of its length, engages the bottom of the block 25 to which it is secured, in order to render the arm stiff and unyielding vertically relative to the arms 22 and 23.

In the machine disclosed in my patent numbered 1,850,120 and dated March 22, 1932, I provided the seam-ridge guide with a lateral pin located near the delivery end of the guide and forming a bearing against which the free end edge face of the seam-ridge rested as it was guided. Sometimes, this pin butted against the leading edge of the seam-ridge and interfered with the insertion of the work into the machine. By substituting the arm 24 for the pin, I have provided the guide with a surface under which the seam-ridge skids smoothly into operating position.

The front end face of the block 25 is provided with a. lateral channel 26, (Fig. l), which receives a block 21, (Figs. 1 and 7), secured to and projecting laterally from a stationary part 28 of the machine frame. The front face of the block 25 is provided with a forwardly projecting pin 29, (Fig. 1), which passes through a slot 38, (Fig. I), elongated vertically, in the block 21. The front and rear faces of the blocks 25 and 21 are normally held in engagement by a spring 3! coiled about the pin 29 and interposed between an adjusting head 32 on the free end of the pin 29 and a washer 33 loosely mounted on the pin 29 and engaged with the front face of the block 2?.

The spring 31 normally maintains the delivery end of the guide 2! spaced from the roll I a distance less than the normal thickness of the quarters. In order that the guide 2| may yield vertically under the lifting pressure of the work against the tension of the spring 3|, the rear end of the block 2'! at its upper end is slabbed-off at 34, so that the block 25 may rock vertically on the block 21. With this construction, the roll 15, in addition to performing the function of a work support, performs the function heretofore performed bythe seam-crease guide disclosed in my Patent No. 1,850,120.

With this construction, the arms 22 and 23 may yield laterally, and the guide 2i, as a unit, may yield vertically, The block 21 may be adjusted laterally to locate the guide 2| accurately with relation to the median line of the seamridge. To this end, the block 21 is provided with an open-ended slot, (not shown), which embraces the shank of a clamping screw 35 threaded into the stationary part 28. The block 21 is provided with a shallow guide-way 36 which receives an adjustable stop 31 engageablewith the shank of the screw 35, so that when the block 21, with the parts carried thereby, is removed from the machine, the unit may be replaced readily without readjustment.

After the work has been placed in position on the roll l5 with the seam-ridge engaged by the guide, the tape is applied to the seam-ridge by a seam-pressing hammer 38, (Fig. 1), carried by a lever or head 39. The head 39 is formed with a slot 48 in which is received a block 4| which is pivoted at 42 to the frame of the machine. The upper end of the head 39 is connected to an eccentric 43 on the drive-shaft 44. As disclosed more fully in my Patent No. 1,646,212, this construction reciprocates the hammer 38 to press the seam-ridge and apply tape thereto and oscillatesthe hammer 38 in contact with the taped-seam-ridge to impart a feeding movement thereto.

In order to apply the marginal edges of the tape, applied to the seam-ridge by the hammer 38, to the adjacent faces of the quarters I2 and I3, the machine is provided with two hammers 45 and 46 flanking the hammer 38. The hammers 45 and 46 are secured to the forked ends of a combined heat-unit and combined heat unit and lever or head 41, (Fig. 1), which is provided with a vertical slot 48. This slot receives a block 49 that is pivoted at 42, behind the block 4!, to the machine frame. The upper end of the head 4'! is connected to the eccentric 43 which reciprocates and oscillates the hammer 38. The eccentric 43 is of the double-throw type, in order that the reciprocating and oscillating movements of the hammer 38 and the hammers 45 and 46, respectively, occur alternately. That is, when the hammer 38 is on its active stroke to press the seam, apply the tape and feed the work, the hammers 45 and 46 are on their idle stroke, (Fig. 5). When the hammers 45 and 46 are on their active stroke to apply the tape to the quarters adjacent the seam-ridge and to feed the work, the hammer 38 is on its idle stroke, (Fig. 6),

In the machine disclosed in my Patent No.

1,646,212, the toe of the seam-pressing and tape-- applying portion of the hammer was constructed to impart a greater seam-pressing and tapeapplying pressure than the heel thereof. In my present machine, the heel on the bottom of the hammer 38 is closer to the downgoing surface of the roll l5 than the toe of the hammer, (Figs. 2 and 5), the bottom of the hammer sloping downwardly and rearwardly relative to the downgoing side of the roll I5 gradually from the toe to the heel of the hammer. During the seampressing and tape-applying operation, the seampressing and tape-applying pressure is increased step by step from the time the hammer 38 initially engages the work until that portion of the seam-ridge being operated upon is fed beyond its influence. With this construction and mode of operation, every portion of the seam-ridge throughout its length is pressed a plurality of times with successive increments of pressure.

When the seam-ridge is first inserted into the machine, the toe, or forward portion on the bottom of the hammer, operates only on a short length of the leading edge of the seam-ridge. After the first feeding step of the seam-ridge, another portion of the seam ridge is operated upon by the toe of the hammer, but that portion of the seam-ridge previously pressed and taped by the toe of the hammer is engaged by a portion of the hammer rearwardly of the toe, which, because the bottom of the hammer slopesdownwardly and rearwardly relative to the downgoing side of the roll 15, exerts a greater pressure on the previously taped-seam-ridge than the toe of the hammer exerted in applying the tape and pressing the seam-ridge initially. This gradual increase in the pressure exerted by the hammer continues until the taped-seam-ridge is fed beyond the influence of the heel of the hammer 38. During the feeding movement of the work by the hammers 38, 45 and 46, they draw tape through a tape-guide 50, (Fig. 1), from a suitable source of supply extending in the machine from a coil, (not shown), to the tape-guide. Intermediate the coil and the tape-guidethe machine is provided with a tape-pull-off mechanism having substantially the same construction and mode of operation as the corresponding pull-off mechanism disclosed in my patent numbered 1,899,051

and dated February 28, 1933.

Described in general terms, the pull-01f comprises a roll (Figs. 1 and 2), having a ratchet 52-engaged by a pawl 53-pivotally mounted on the head 41, the mode of operation being such that the roll 5! is rotated by the pawl 53 and ratchet 52 during the downward reciprocating movement of the head 4'! until a supply of slacktape, extending between the roll 5i and the tapeguide 50, is produced, whereupon'the pawl 53 is withdrawn from the ratchet 52, thereby suspending the rotation of the roll 5!. When the hammers have withdrawn from the source of slack-tape supply substantially all the tape therein, the pawl 53 is reengaged with the ratchet 52 to cause the roll 5|.to rotate and thus replenish the source of slack-tape supply.

. The tape-guide 50, the auxiliary tape-guide 54, (Fig. 1) and the tape-severing knife 55 are substantially identical with the corresponding parts embodied in the tape-applying machine disclosed in my patent numbered 2,026,911 and dated J anuary 7, 1936. The tape-guides 59 and 54 are carried by an arm 56, (Fig. 1) secured to one end of a rock-shaft 51, (Figs. 2 and 7). The other end ofthe rock-shaft 51 is provided with an arm 58, (Figs, 3 and 4), the free end of which is pivoted to one end of a link 59. The other end of the link 59 is pivoted to an arm 60, constituting, in effect, an arm projecting from a rock-shaft 6|, (Figs, 1

and '7), journalled in the frame of the machine.

The shaft 6| is provided with a second arm 62 (Fig. 1), which is connected to a treadle, (not shown).

As disclosed more fully in my Patent No. 2,026,- 911, the tape-guides 5|! and 54 normally occupy the position of Fig. 1 herein during the seampressing and tape-applying operation, in which position they are in the tape-severing path of movement of the tape-severing knife 55, the normal position of which is shown in Fig. 1 herein. When the treadle, (not shown), is depressed, the tape-guides are swung through the connections described from the positions of Figs. 1 and 3 to that of Figs. 2 and 4.

In order that the tape-severing knife may be operated to sever the tape when the tape-guides are elevated above the tape-severing path of movement of the tape-severing knife, the knife is carried by an arm 63, (Fig. 1) projecting from one end of a rock-shaft 64. The other end of the rock-shaft 64 is provided with an arm 65, (Fig. 3), having a pin 66 projecting laterally therefrom.

The pin 66 is located normally in the path of movement of a cam plate 61 carried by a block 68 adjustably connected to the link 59. To this end,

the link 59 is provided with an elongated slot 69 which receives the shanks of screws 10 projecting from one side face of the block 68, the free ends of the shanks of the screws 10 being provided with slotted heads 1| which, through engagement with washers ll interposed between the link 59 and the heads ll, serve to clamp the block 68 in any desired position of adjustment longitudinally of the link 59. With this construction, when the treadle connected to the rock-shaft 6| is depressed, the tape-guides and 54" are elevated from the positions of Figs. 1 and 3 to that of Figs. 2 and 4. Just before the tape-guides reach the positions of Figs. 2 and 4, the cam plate 61 engages the pin 66 and during the last part of the movement of the link 59 swings the tape-severing knife from the position of Fig. 3 to that of Figs. 2 and 4, thus operating the knife to sever the tape.

'ply, (Fig.2)

As disclosed in my Patent No. 2,026,911, associated with the tape-guide 50 is a clamping plate 13. In my present construction, the tail 14 of the clamping plate l3 has been extended forwardly, so that when the rock shafts 51 and 64 have been rotated in opposite directions to elevate the tape-guides and to operate the tape-severing knife, respectively, the front end of the tall 14 will engage the tape in the source of slacktape supply and snub it, (Fig. 2) in order to provide a taut section of tape between the tail and the work for the knife to sever. The tail 74 performs the additional function of causing the pawl 53 to reengage the ratchet 52 and thus cause the roll5l to withdraw tape from the source of sup- This insures a supply of slack-tape for the hammer 38 to draw from at the time it picks up the leading end of the tape dangling down from the auxiliary tape-guide 54 and applies it to the leading end of the seam-ridge.

What is claimed as new, is:

l. In a tape-applying machine, the combination with agroll and arubber ring free to yield laterally unsupported laterally engaged peripheraly therewith, of a ring engaged peripherally with .the rubber ring.

2. Ina tape-applying machine, the combination with a roll and a thick rubber ring free to yield laterally unsupported laterally engaged peripherally therewith, of a thin metal ring engaged peripherally with the rubber ring.

3. In a tape-applying machine, the combination with a roll and a thick rubber ring free to yield laterally unsupported laterally engaged peripherally therewith, of a thin metal ring engagedf peripherally with the rubber ring, the

metal ring having lateral flanges which embrace V the lateral faces of the rubber ring adjacent the periphery thereof.

4. Ina combined seam-pressing and tape-applying machine, the combination with means for applying tape to the seam-ridge, pressing the seam-ridge through the tape and feeding the taped and pressed seam-ridge, of separate means for applying tape to the faces of the quarters adjacent the seam-ridge and for feeding the work. d

5. In a combined seam-pressing and tape-applying machine, the combination with a four-mo: tion device for applying tape to the seam-ridge, of a four-motion device for applying tape to the faces of the quarters adjacent the seam-ridge.

6. In a combined seam-pressing and tape-applying machine, the combination with a hammer for operating upon the seam-ridge, and a pair of hammers flanking the first-named hammer for operating upon the faces of the quarters adjacent the seam-ridge, of means for operating the two sets of hammers alternately to feed the work.

'7. In a seam-pressing machine, the combination with a work support over which is fed work in the form of two pieces sewed together by a seam presenting a seam-ridge on one face of the work and a seam-crease on the other face of the work, of a seam-presser cooperating with the work support to press the same portion of the bottom face sloping downwardly and rearwardly relative to the downgoing side of the roll.

9. In a tape-applying machine, the combination with a tape-severing knife, a tape-guide, and a tape-pull-ofi mechanism, for producing a source of slack-tape supply, of means for simultaneously elevating the tape-guide out of the tape-severing path of movement of the tapesevering knife and snubbing the tape in the source of slack-tape supply to produce a taut length of tape to be severed by the tape-severing knife.

10. In a tape-applying machine, the combination with a tape-severing knife, a tape-guide, and a tape-pull-off mechanism, for producing a source of slack-tape supply, of means for simultaneously elevating the tape-guide out of the tape-severing path of movement of the tapesevering knife, snubbing the tape in the source of slack-tape supply to produce a taut length of tape to be severed by the tape-severing knife and operating the pull-01f mechanism to replenish the source of slack-tape supply.

11. A tape-applying machine having, in combination, tape-applying, tape-severing and tapepull-ofi mechanisms, and a tape-guide cooperating in one position with the tape-applying mechanism and in another position both with the tape-severing and tape-pull-off mechanisms.

12. A tape-applying machine having, in combination, tape-applying, tape-severing and tapepull-ofl" mechanisms, and a tape-guide cooperating in one position with the tape-applying mechanism and in another position both with the tape-severing and tape-pull-off mechanisms, and means for moving the tape-guide from the position in which it cooperates with the tape-applying mechanism to the position in which the tapeguicle cooperates with both the tape-severing and tape-pull-off mechanisms and for operating the tape-severing knife. to sever the tape.

13. In a seam-pressing machine, the combination with a roll work support over which is fed work in the form of two quarters sewed together by a seam presenting. a seam-ridge, a seampressing member cooperating with the work support to press the seam-ridge, of a seam-ridge guiding means having a delivery end normally spaced from the upgoing side of the roll a distance less than the thickness of the quarters engaged thereby.

14. In a seam-pressing machine, the combination with a roll work support over which is fed work in the form of two quarters sewed together by a seam presenting a seam-ridge, a seampressing member cooperating with the Work support to press the seam-ridge and a seam-ridge guiding means having a vertically movable delivery end normally spaced from the upgoing side of the roll a distance less than the thickness of the quarters engaged thereby, of a. spring for holding the delivery end in its normal position and for exerting pressure on the quarters to hold them in engagement with the roll during the vertical movement of the delivery end under the lifting pressure of the work.

15. In a seam-pressing machine, the combination with a work support over which is fed work in the form of two quarters sewed together by a seam presenting a seam-ridge, a seam-pressing member cooperating with the work support to press the seam-ridge, and seam-ridge guiding means provided with a seam-ridge guiding passage constituted by two resilient side members adapted to engage the faces of the quarters adjacent the seam-ridge and the sides of the seam-ridge and a stiff upper member to engage thefree end edge face of the seam-ridge, whereby the sides which bound the seam-ridge guiding passage are relatively yieldable laterally but not vertically, of a common support for the members of the seam-ridge guiding means.

16. In a seam-pressing machine, the combination with a work support over which is fed work in the form of two quarters sewed together by a seam presenting a seam-ridge and a seampressingmember cooperating with the work support to press the seamridge, seam-ridge guiding means provided with a seam-ridge guiding passage constituted by two resilient side members adapted to engage the faces of the quarters adjacent the seam-ridge and the sides of the seam-ridge and a stiff upper member to engage the free end edge face of the seam-ridge, whereby the sides which bound the seam-ridge guiding passage are relatively yieldable laterally but not vertically, and a common support for the members of the seam-ridge guiding means, of means for mounting the support to yield vertically under the lifting pressure of the work engaged by the seam-ridge guiding means.

WALTER P. OSGOOD. 

